baber/WOPTO huggingface dataset:
Patent GB-788719-A (GB)
Title: Improvements relating to top roller journals for sugar cane mills
IPC: C13B10/06
Filed: 1956-09-29
Abstract: 788,719. Cylindrical journal bearings. FLETCHER & CO., Ltd., G., and MURRAY, C. W. Sept. 29, 1956, No. 29785/56. Class 12 (1). A top roller journal assembly for a sugar cane mill comprises top and bottom bearing brasses 12, 13, split horizontally, secured to each other by bolts 16, passing through lugs 14, 15, and nuts 17. The bottom brass 13 is provided with flat faces 13a at each side which form virtual extensions of similar vertical side faces 12a on the top brass. The side faces 12a, 13a fit between the faces of a headstock 10 and wearing plate 11.
Patent GB-519347-A (GB)
Title: Improvements in headwear caps
IPC: A42B1/04
Filed: 1938-10-14
Abstract: 519,347. Caps. CUMBER, M. Oct. 14, 1938, No. 29814. Drawings to Specification. [Class 631 A cap made from a soft, inextensible, porous but water-repellent material, such as felt treated to make it water-repellent without affecting its porosity, comprises a close fitting covering about the crown, forehead and neck of a wearer, with flap portions which cover or surround the ears, and a rough exterior surface which grips and retains in place ordinary headgear which may be worn over the cap. It is specially intended for military and police wear, under the usual metal helmet.
Patent GB-174199-A (GB)
Title: Improvements in brooms
IPC: A46B3/08
Filed: 1920-10-21
Abstract: 174,199. Neff, H. D. Oct. 21, 1920. Bristles, fixing.-The head of a broom or brush comprises a rounded upper portion 13 in which the handle is secured, and walls 10, 11, 12 and a diaphragm 16, secured to the portion 13, which form a chamber for the reception of a number of broom units. The walls 10, 11 extend inwardly and downwardly for part of their length, as shown, the lower portions thereof being parallel to each other. The wall 10 is cut away to form .an opening 18 for admission of the broom units, the opening being closed bv a spring cover 19 provided at its upper end with an extension 20 having a projection 23 adapted to engage a perforation in the front wall whereby the cover is locked in position. The lower sides of the cover are provided with extensions 24, which fit under the lower edges of the opening 18. Each broom unit comprises a bundle of broom corn fibres held in a sleeve 22 by V-shaped indentations 25 formed on the end walls which are parallel to each other, the front and back walls of the sleeve being shaped to conform to the shape of the chamber. The broom-holder may be formed from a single piece of sheet metal, hard rubber, or fibre.
Patent GB-745276-A (GB)
Title: Improvements in or relating to cooling towers
IPC: B05B5/00
Filed: 1953-10-29
Abstract: 745,276. Cooling-towers. MITCHELL, F. G. Sept. 16, 1954 [Oct. 29, 1953], No. 29967/53. Class 64(1). In a cooling tower in which the liquid to be cooled is distributed over the packing 12 by a rotary distributer comprising pipes 14 from which the liquid emerges in such a way as to cause the distributer to rotate automatically, the distributer is mounted on or embodies a float 17 supported by liquid in a tank 21  coaxial with the tower. In the form shown, the float 17 is annular and forms the lower part of a cylinder 15 from which the pipes 14 radiate. Water to be cooled is supplied to the upper part of the cylinder by a vertical pipe 13. The outer ends of the pipes 14 may be provided with floats supported in a trough of liquid. The pipes 14 may be shaped as vanes, or provided with trapezoidal plates 24, 25, so as to act as a fan on the air flowing through the tower. The pipes taper outwardly.
Patent GB-298386-A (GB)
Title: Improvements in or relating to electric immersion heaters
IPC: H05B3/78
Filed: 1927-11-09
Abstract: 298,386. British Brass Fittings, Ltd., and Logan, A. Nov. 9, 1927. Heating by electricity.-A switch is detachably mounted on the end of an immersion heater secured in the wall of a tank, urn, or the like. The casing comprises a metal tube a closed at one end and secured at the other end to a. screwed member b arranged below a cylindrical housing c. The wall of the tank is gripped between the underside of the housing c and a nut d. An earth terminal may be fitted to the housing. A detachable plate f secured to the housing c by screws g is also secured at its centre to the heating elements which are a sliding fit in the casing a. Bus-bars j having integral sockets m for receiving plugs on a three heat switch p are resiliently mounted on the plate f by means of bolts and spring washers k. The supply leads enter through a socket e integral with housing c. A cover g is provided for the switch.
Patent GB-683180-A (GB)
Title: Improvements in or relating to electronic bi-stable trigger circuits
IPC: H03K3/12
Filed: 1950-12-07
Abstract: 683,180. Multi-stable state valve circuits. SOC. D'ELECTRONIQUE ET D'AUTOMATISME. Dec. 7, 1950 [Dec. 7, 1949], No. 30041/50. Class 40 (vi). A trigger-pair circuit is reverted to its first stable state by removing a short-circuit from across an inductor which is in series with the H.T. supply to that valve of the trigger-pair which is conducting when the circuit is in its second stable state. The Figure shows a triggerpair circuit comprising valves 1 and 2 which are cross-coupled by networks 14, 15. Normally inductor 10 is shorted via switch 11 and the circuit is triggered to the second of its two stable states by a pulse applied at terminal 6, in this second state valve 1 is conducting and valve 2 cut-off. To revert the circuit to its first stable state switch 11 is opened and the sudden current flow through inductor 10 causes the anode potential of valve 1 to fall suddenly which cuts-off the valve and reverts the circuit to its first stable state. The inductor 10 should preferably have a value L which is greater than the value of R<SP>2</SP>C, where R is the internal resistance of valve 1 and C the self-capacitance of inductor 10. In a modification, Fig. 3 (not shown), a counting circuit comprises a chain of trigger-pair circuits having the anode load resistor of the valve of each pair which is conducting in the second stable state connected in parallel and to the H.T. supply line via an inductor which is normally shorted, the triggerpair circuits of the chain being reverted to their first stable state by removing the short across the inductor as described in connection with Fig. 1. The inductor preferably has a value where K is a constant greater than unity, C is the self-capacity of the inductor, R the internal resistance of each of the normally non-conducting valves and N the number of trigger-pair circuits of the counting chain.
Patent GB-1507393-A (GB)
Title: Track change-over mechanism for a multi-channel tape recorder
IPC: G11B5/55
Filed: 1975-07-17
Abstract: 1507393 Track changing I BAN 17 July 1975 [27 Dec 1974] 30041/75 Heading G5R In a track changing arrangement for a magnetic head 5, the stepped cam member 11 which moves the head via cam follower 10 is driven during track change by the tape drive capstan 3. When solenoid 18 receives a track change pulse, armature 19 is initially moved into contact with sloping portion 23B of arm 21 and then when the armature is released at the end of the pulse moves outwards allowing spring 24 to rotate arm 21 until the armature is engaged by the base of slot 23C. This moves an idler 12 which is fast with stepped cam 11 into contact with drive wheel 25 on the capstan. The idler is generally four-sided and drives the stepped cam through a track changing step until the distance between the idler centre and that of wheel 25 is a maximum. At this time armature 19 is moved by spring 20 on to step 23A on the arm 21 thus holding the idler out of engagement with the capstan drive wheel 25 until the next track changing pulse. In a further arrangement the idler is circular and carries a notched cam which co-operates with a solenoid operated pawl.
Patent GB-748190-A (GB)
Title: Photographic elements containing ultraviolet radiation absorbing compounds
IPC: C07D277/20
Filed: 1953-10-30
Abstract: 3 - Phenyl - 2 - phenylimino - 5 - o - sulphobenzal-4-thiazolidone (sodium salt) is prepared by refluxing together 3-phenyl-2-phenylimino-4 - thiazolidone and o - sulphobenzaldehyde sodium salt in methanol containing piperidine.  5 - (4 - Methoxy - 3 - sulphobenzal) - 3 - phenyl-2 - phenylimino - 4 - thiazolidone (sodium salt) is similarly prepared.  5 - [2:4 - Bis - (carbmethoxymethoxy) - benzal] - 3 - phenyl - 2 - phenylimino - 4 - thiazolidone is prepared by refluxing together 3-phenyl-2 - phenylimino - 4 - thiazolidone and 2:4-bis-carboxymethoxybenzaldehyde in methanol containing piperidine.  Hydrolysis with alcoholic sodium hydroxide yields the sodium salt of 5 - (2:4 - bis - carboxymethoxybenzal) - 3 - phenyl-2-phenylimino-4-thiazolidone.  5 - [3 - (3 - Chlorosulphonylbenzamido) - benzal] - 3 - phenyl - 2 - phenylimino - 4 - thiazolidone is prepared by refluxing together 5-(3-aminobenzal) - 3 - phenyl - 2 - phenylimino - 4-thiazolidone and m-chlorosulphonylbenzoyl chloride in dioxane, and yields, on hydrolysis with alcoholic sodium hydroxide, the sodium salt of 3-phenyl-2-phenylimino-5-[3-(3-sulphobenzamido) -benzal]-4-thiazolidone.  5 - (3 - Aminobenzal) - 3 - phenyl - 2 - phenylimino-4-thiazolidone is prepared by reducing with hydrogen in presence of dioxane, sodium carbonate, and Raney nickel 5-(3-nitrobenzal)-3 - phenyl - 2 - phenylimino - 4 - thiazolidone, itself prepared by refluxing together 3-phenyl-2-phenylimino-4-thiazolidone, m-nitrobenzaldehyde, methanol, and piperidine.
Patent GB-1131920-A (GB)
Title: Thermosetting coating compositions
Inventor: CHRISTENSON ROGER MORRIS
IPC: C08F20/34
Filed: 1966-07-05
Abstract: 1,131,920. Coating. P.P.G. INDUSTRIES, Inc. 5 July, 1966, No. 30114/66. Headings B2E and B2K. [Also in Division C3] Compositions suitable for providing heatcurable coatings on substrates such as glass, wood, hardboard, plastics and metals, e.g. steel, treated steel or aluminium, comprise a solvent and, as essential film-forming component, an interpolymer of (a) 2-25 mole per cent of a hydroxyalkyl ester of an ethylenically unsaturated carboxylic acid (b) 0.1-20 mole per cent of an ethylenically unsaturated carboxylic acid and (c) at least one ethylenically unsaturated comonomer, the composition containing at least 0.1 per cent by weight, based on the weight of the interpolymer, of polymerised carboxylic acid units which have been reacted with an alkylenimine or substituted alkylenimine. In a modification, the iminated carboxylic acid units are present in a separate polymer which is blended with the hydroxyalkyl ester interpolymer. The composition may include an additional resinous component which is coreactive with the interpolymer to form cross-links. Such resins include aminealdehyde products which may be etherified, alkyd resins, polyepoxides, epoxy esters, vinyl halide polymers, cellulosic polymers, polysiloxanes and phenolic resins. A pigment, e.g. carbon black or phthalocyanine blue, may be included; other additives include acrylic polymers, p-phenylene diamine, mono- or di-nbutyl phosphate, additional solvents, plasticisers and fillers. The coatings are preferably applied by spraying and can be cured by baking at 150-300‹F for 10-40 minutes.
Patent GB-889212-A (GB)
Title: Improvements in or relating to means for holding keys
IPC: A45C11/32
Filed: 1958-09-23
Abstract: 889,212. Key-holders; sliding-clasp fasteners. LESTIR, J. W. S. Sept. 4, 1959 [Sept. 23, 1958], No. 30343/58. Class 44. A casing 5, such as a pouch or purse of leather or synthetic plastic material for holding keys has a chain 10 attached by one end to the inside of the casing and adapted to ex tend out of the casing, the chain having attached tc its free end a swivel hook 12 adapted to carry one of the keys; the other keys are carried by swivel hooks 15 attached by shorter chains 14 to the inside of the casing 5, the chains 14 being of insufficient length to extend out of the casing. The latter is closed by means of a sliding-clasp fastener 7.
Patent GB-1213347-A (GB)
Title: Rotor with pin mounted blades
IPC: F01D5/30
Filed: 1968-06-26
Abstract: 1,213,347. Rotor blade fixing. UNITED AIRCRAFT CORP. June 26, 1968 [Aug.16, 1967], No.30354/68. Heading F1T. To reduce vibration of the blades of a compressor of fan rotor in a gas turbine engine each blade is mounted on the rotor by a pin passing through holes in the blade root and in the rotor with clearance to permit rolling of the pin and each blade differs from an adjacent blade in the diameter of the pins and/or holes and/or in the distance of the pin axes from the rotor axis. Thus each blade has a different natural frequency to an adjacent blade. In one embodiment, the blades are mounted on the rotor 74 in similar groups of three, e.g. 50 to 52 or 53 to 55, and the pins 60 to 62 or 63 to 65 in each group are at different distances from the rotor axis. Alternatively, the blades may be mounted on the rotor at only two different radii so that every other blade is on the same radius. The different radii can be combined with, or replaced by, different diameter pins and/or holes.
Patent GB-208525-A (GB)
Title: Improved manufacture of electrical resistances
IPC: H01C17/04
Filed: 1923-12-03
Abstract: 208,525. Verhaert, L. Dec. 14, 1922, [Convention date]. Forming articles with metal reinforcements and the like.-An electric resistance embedded in glass or the like is produced in the following way. A wire 7 is wound on a screw-threaded steel rod 4 which is then inserted in a mould 1 so as to engage a recess 5 in the base, the ends of the wire being led out through an aperture 8 and at the side of a boss 6 on the screw respectively. The glass is then run in and pressure is preferably exerted to force it into the threads; after the glass has sufficiently set, the rod 4 is removed by unscrewing, the wire 7 adhering to the glass. Glass is then run into the inner space. The mould may be of any shape. The rod 4 may be slightly tapered to facilitate unscrewing, and may be water-cooled.
Patent GB-191232-A (GB)
Title: Improvements in hardness testing machines
IPC: G01N3/42
Filed: 1921-11-15
Abstract: 191,232. Rockwell, S. P. Nov. 15, 1921. Testing hardness of materials by penetration. The penetrator is acted upon by a loaded lever through a sleeve and a spring which surround a rod connecting the penetrator with an indicating device, so that the penetrator is movable independently of the said sleeve. A base 5 carries a work-support 9 movable vertically by a wheel 13, and an overhanging portion 6 provided with a fixed bushing 15 within which is a rod 18 carrying the penetrator 61. The load from the lever 24 is transmitted to the penetrator by the block 23, sleeve 19 and spring 20, the head 17 of the penetrator during testing being located clear from any obstruction in the space 22 between the lower end 21 of the sleeve 19 and the shoulder 16. Load is applied by the weight 28 on beam 27 through link and lever 26 and 24, the beam 27 resting on a pin 29 carried by a toothed sector 30 in mesh with wheel 31 on shaft 32. Also carried on this shaft is a spool 36 surrounded by a spring 35 which together with weight 28, tends to rotate the shaft 32 clockwise as shown in Fig. 3 and lower the pin 29 and thus apply the load. This is prevented, however, until a pin 41 on the spool is freed by depression of the button 42 through arms 38, 39 on a shaft 40. Rapid rotation of the shaft 32 is prevented by a brake strap 44 spring-connected to a nut 47 on a tension-regulating screw 49. To take off the load this shaft is wound anticlockwise, Fig. 3, by a handle keyed to it. Resting on the top of the rod 18 is a lever 51 connected to a rod 52 operating an indicator 53, this rod 62 carrying at its lower end a sleeve 57 which surrounds a member 59 attached to the bottom of the indicator and having a mark 58 on it, so that when the specimen is correctly set in the machine ready for testing the upper edge of 57 is at the mark 58. Alternatively in the said set. position the specimen abuts against a stop 60 on the lower end of the 'bushing 15.
Patent GB-823051-A (GB)
Title: Improvements in or relating to apparatus for gas analysis
IPC: G01N27/66
Filed: 1955-10-25
Abstract: 823,051. Gas analysis. PHILIPS ELECTRICAL INDUSTRIES Ltd. Oct. 25, 1955 [Oct. 28, 1954], No. 30469/55. Class 40 (3). The constitution of an ionizable gas in a proportional counter is determined by irradiat-. ing the gas with a monochromatic radiation to produce pulses of different amplitudes (escape and main peaks) corresponding to elements constituting the gas and measuring the peaks. Gas under test, e.g. xenon and krypton, in chamber 1 is ionized by X-rays from a source 7. Variable current flow between electrodes 5 and 6 is produced and amplified in units 11 and 12 and applied to an oscilloscope 13 calibrated to permit direct observation of the constituents of the gas. Alternatively the pulses are segregated into groups according to amplitude by means of a pulse height analyser 14 and counted by a scaler and rate meter 15 before passing to a strip recorder or a control monitor 17. The method may be applied to detecting and/or controlling theamount of tetra-ethyl lead in petroleum or air.
Patent GB-1027857-A (GB)
Title: Improvements relating to shears for cutting scrap metal and the like
IPC: B23D31/00
Filed: 1964-08-04
Abstract: 1,027,857. Shearing. LINDEMANN MASCHINENFABRIK G.m.b.H. Aug. 4, 1964 [Nov. 7, 1963; Jan. 15, 1964], No. 30476/64. Heading B3W. A shear for simultaneously making a longitudinal and a transverse cut has a main blade whose cutting edge is inclined in a main cutting plane across the direction in which the material is moved into the shears, a co-operating blade having a cutting edge in the same plane and means for moving one blade towards the other and is characterized in that the cutting edge of the main blade comprises at least two portions which are inclined in the same direction relatively to the cutting edge of the co-operating blade and between which there is a step and at least two co-operating auxiliary blades the cutting edges of which are disposed in a plane perpendicular to the main cutting plane and passing through the step, one auxiliary blade being fastened to the main blade and the other to the co-operating blade. The main blade comprises two parts 10 and 11 having cutting edges 12 and 13 separated by a step 14. The co-operating blade has a straight edge 9. An auxiliary blade 15 is secured in the step 14 and co-operates with an auxiliary blade 18 mounted on the base 3. To enable the blade 10 to cut over its full length the auxiliary blade 18 is adjustably mounted and is displaced downwardly below the horizontal plane through the edge 9, by an amount slightly greater than the maximum thickness of material to be cut. The cutting edge 19, Fig. 2 (not shown), of the blade 18 is formed at a shear angle a. In a modification, Fig. 7 (not shown), the lower auxiliary blade 38 is mounted on an hydraulic cylinder 39 for vertical movement. In its raised position the cutting edge of the auxiliary blade is level with the edge 9 so that the material is cut first by the blades 38 and 50. When the lowest point of the edge 13 has moved below the edge 9 a cam 48 opens a switch 46 which allows oil trapped in the cylinder to escape and thus lower the blade 38. At the bottom of the stroke of the main blade a switch 47 is operated to raise the blade 18. In a further modification, Fig. 11 (not shown), the main blade comprises three or more sections 22, 23, 24 with auxiliary blades 30 and 31 arranged at each step. The lower co-operating auxiliary blades may be adjustable as in the construction shown in Fig. 1 or may be mounted on hydraulic cylinders as in Fig. 7. In the embodiment shown in Fig. 11 the auxiliary blades and the associated sections of the main blade are vertically displaced relative to one another so that the cut is made first by the blades 35 and 37 and then by the blade 27, which completes its cut before the auxiliary blades 34, 36 operate. Similarly the main blade section 26 completes its cut before the section 25 contacts the material. This construction reduces the maximum loading on the press.
Patent GB-540879-A (GB)
Title: Improvements in automatic sporting guns
IPC: F41A9/18
Filed: 1939-11-21
Abstract: 540,879. Automatic sporting guns. PROLA, G. Nov. 21, 1939, Nos. 30487 and 30488. Convention dates, Dec. 3, 1938, and Oct. 5, 1939. [Class 119] An automatic single-barrel shot gun is provided with two'separate magazines for cartridges containing different types of shot, one magazine being arranged in the butt and the other in a forward extension of the stock. Either type of cartridge is fed to the chamber at will through the agency of a known pre-selecting device comprising two triggers, both acting on the same firing device but each operating independently on a member which assumes one of two positions, thereby causing feed from the appropriate magazine for the next shot, depending on which trigger is operated. The invention is shown in Fig. 2 applied to a gun of the long-recoil type, the breech bolt 29 being locked by a rocking locking-bolt 25 and the firing-pin 51 being cocked into engagement with a sear 56 when the breech closes. The sear is actuated by the arms 59, 60, Fig. 11, of two triggers 4, 5, depending portions 107, 108, of which serve to rock a lever 110 about its pivot 112 and to slide a lever 114. This lever registers, either with a lever 119 for releasing by lever 126 a stop 132, Fig. 4, holding up the cartridge 133 from the front magazine 6, or with a lever 122 for releasing a stop 129 holding up the cartridge from the rear magazine 7. Both levers 119, 122 are actuated through the medium of the lever 114 by a lever 118 operated by a pawl 134 when the barrel moves forwardly after recoil. If one magazine is empty a member 147, Fig. 4, transmits the motion of one of the magazine stop levers 122, 126 to the other lever. The member 147 is normally held inoperative by the presence of a cartridge in the magazine. The cartridge feed mechanism includes a rocking elevator of the type used in the Browning automatic shot gun.